Department of Physics, 104 Davey Lab, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Phys Rev Lett. 2013 Oct 4;111(14):146804. doi: 10.1103/PhysRevLett.111.146804. Epub 2013 Oct 2.
We show that the solid phase between the 1/5 and 2/9 fractional quantum Hall states arises from an extremely delicate interplay between type-1 and type-2 composite fermion crystals, clearly demonstrating its nontrivial, strongly correlated character. We also compute the phase diagram of various crystals occurring over a wide range of filling factors and demonstrate that the elastic constants exhibit nonmonotonic behavior as a function of the filling factor, possibly leading to distinctive experimental signatures that can help mark the phase boundaries separating different kinds of crystals.
我们展示了 1/5 和 2/9 分数量子霍尔态之间的固相是由 1 型和 2 型复合费米子晶体之间极其微妙的相互作用产生的，这清楚地表明了它的非平凡性和强相关性。我们还计算了在广泛填充因子范围内出现的各种晶体的相图，并表明弹性常数作为填充因子的函数表现出非单调行为，这可能导致独特的实验特征，可以帮助标记分离不同类型晶体的相界。
